ITEM NAME:Bicycle Bike Turbo Trainer Front Wheel Support Block Riser #gib Store Home Promotion Hot Item Add to Fav.This is a hardened plastic front wheel block to support the front wheel of a bike when using a turbo trainer. 1 x Bicycle Bike Front Wheel Support Riser Block. Size: Approx. 22.8cm x 11.8cm x 5.7cm/ 8.98" x 4.65" x 2.24".